Air-heating device for gas-engines.



C. KEAIRNES.

AIR HEATING DEVICE FOR GAS ENGINES. APPLICATION FILED SEPT. 4. 1914.

1,172,143. Patented Feb. 15,1910.

"inuunluz I 6', lfeaarne/a an ear terns; FFltCE.

CORNELIUS KEA IRNES, F SOLDIER, IOWA. i

Specification of Letters Patent.

Patented Feb. 15,1916.

Application filed September 4, 1914. Serial No. 860,237.

To all whom it may concern:

Be it known that I, CORNELIUS KEAIRNES, a citizen of the United States,residing'at Soldier, in the county of Monona and State of Iowa, haveinvented certain new and useful Improvements in Air-Heating Devices forGas-Engines; and I do herebydeclare the following to be a full, clear,and exact description of'the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to devices especially designed for heating theair previously to admission to the carbureter of an internal combustionengine for insuring a dry and I warm mixture of the fuel.

The invention has for its object to provide a device of this characterof improved and simplified construction which shall be in-' expensive tomanufacture and quickly and conveniently adaptable to various types ofstationary and portable gas engines.

With this and other objects in view, the

invention consists in the novel construction,"

several views, the numeral 5 indicates sec tions of the exhaust pipe ofan internal combustion engine, which sections are preferablyscrew-threaded and fitted within openings formed adjacent the upper andlower extremities of a hollow cylindrical casing 6 having the removableupper end 7 and apertured bottom 8. An air pipe 9 is securedconcentrically within the bottom 8 of the casing '6 and extends adistance inwardly of the latter into a drum 10 arranged in spacedrelation within the casing 6. The drum 10 is formed atits upper end withan outlet pipe 11 for the air which extends through the top or cover 7of the casing and is secured in the latter by nuts 12,

or equivalent means. The top 13 of the drum is-preferably removable,whereby access may be readily obtained to the interior thereof. Aconcave-convex deflector 15 is arranged with its concave face disposedtoward the inner end of the inlet air pipe 9 and is secured over theupper end of the latter by a'plurality of straps 16.

In use, the exhaust gases escaping from the cylinders of the gas engine(not shown) pass into the casing 6 through the inlet pipe 5 andcompletely inclose the drum 10,. leaving the casing through the. outletpipe 5.

The air to be admitted to the carbureter for vaporizing and mixing withthe gasolene enters the drum 10 through the pipe 9 and is [deflectedagainst the side wall of said drum drical formation and verticallydisposed, it. will be understood that the shape thereofmay'be'varied toaccord with the requirements of various types of stationary and portablegas engines.

What I claim is: l

1. A device of the character described comprising a casing, inlet andoutlet pipes communicating with said casing adjacent the oppositeextremities thereof, a heating drum completely inclosed by said casingand arranged in spaced relation thereto, an inlet pipe extending throughone end of said casing and a distance into said drum, an outlet pipecommunicating with said drum.and

extending through the opposite end of said casing, and a concavo-convexdeflector plate secured over and in spaced relation to the inner end ofsaid inlet pipe.

2. A device of the character described comprising a casing including anapertured and heating drum and communicating with In testimony whereof Iaflix my signature the latter, an outlet pipe communicating in presenceof two Witnesses.

with said heating drum and extending CORNELIUS KEAIRNES. through andrigidly secured in the cover of Witnesses: 5 said drum, and meansremovably securing" T. B. Low,

said outlet pipe in the cover of said-casing. DoN C. LU'rz.

